There is a cure for Ricin poisening. You remove the source of the poisen and become healthy again. Ricin is a toxin derived from the castor plant. It is not a diease.
The World War I pilots usually looked like and felt like death after several months of flying. It was ricin build up in thier blood from breathing the burning castor oil that was used to lubricate their engines. They were actually smoking ricin. The silk scarves wrapped around their faces were to filter out some of the smoke.
Thanks for the information. Learn something new everyday.